Active Seat Suspension to Control Low Back Injuries

Details

• Personal Author:
  Johnson CC
• Description:
  A prototype semi actively controlled vehicle seat suspension system was designed, built, and tested. The seat suspension system was intended to reduce low back injuries caused by exposure to vertical vibration. The suspension system used a computer controlled continuously variable hydraulic damper and passive spring elements. The system was tested using a truck seat rigidly mounted onto an hydraulically actuate cylinder used for vibration testing; the input signal was actual road test data for a truck. A human model was used to simulate the dynamic properties of a human sitting on the seat. An overall reduction of 16% root mean square acceleration was realized with the controlled seat suspension system when compared to the same system operating in passive mode. Vibration at the human's natural frequency of 5 hertz was reduced as much as 23.3%. [Description provided by NIOSH]
• Subjects:
  Automobiles Ergonomics Occupational Health Safety Transportation Vibration
• Keywords:
  Control-technology Drivers Equipment-design NIOSH-Grant Transportation-industry Vibration-exposure
• Series:
  Grant Final Reports
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Final Grant Report
• Place as Subject:
  OSHA Region 1 ; Vermont
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OEP - Office of Extramural Programs
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-26
• NIOSHTIC Number:
  nn:00218237
• NTIS Accession Number:
  PB94-158482
• Citation:
  Rehabilitation Technology, Inc., Burlington, Vermont 1993 Oct; :1-26
• Contact Point Address:
  Rehabilitation Technology Inc 1 So. Prospect Street Burlington, VT 05401
• Federal Fiscal Year:
  1994
• Performing Organization:
  Rehabilitation Technology, Inc., Burlington, Vermont
• Peer Reviewed:
  False
• Start Date:
  19920930
• Source Full Name:
  Rehabilitation Technology, Inc., Burlington, Vermont
• End Date:
  19930329
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:07d2a3c1e42961f414c2e3377a2cd237539347e3e56cde33ecc6acbb637d56bbd12fb574996789d7148717fde49d24d08b1416ec5c5bf8a0bcb19e12d67e9bf1
• Download URL:
  https://stacks.cdc.gov/view/cdc/217838/cdc_217838_DS1.pdf
• File Type:
  [PDF - 873.02 KB ]